Tack-fastened button.



KING I TACK FASTBNED BUTTON.

APPLICATION FILED MAY 19,

Patented Feb. 9, 1915.v

WITNESS M Allan/f5' 1HE NFWRIS PETERS ca. FHOTC-LITHG.. WASHINGTON, D. C,

GEORGE A. KING', OF WATERBURY, CONNECTICUT, ASSIGNOR TO SCOVILL MANUFAC- TUBING' COMPANY, OF WATERBURY, CONNECTICUT, A CORPORATION OF CON- NEGTICUT.

TACK-FASTENED BUTTON.

niemeer.;

Application filed May 19, 1913.

To all whom it may concern n .Be it known that I, GEORGE A.. KING, a citizen of the United States, residing at llfvaterbury, in the county of New Haven and State of Connecticut, have invented a certain new and useful Improvement in laclcFastened Buttons, of which the following is a full, clear, and eXact description.

The obj ect of this invention is to provide a tack-'fastened button with an anchoring device integral therewith, thereby reinforcing or strengthening the button, and simplifying its construction.

llhc invention consists of a button having a hubbed back drawn by successive operations from a fiat disk of metal, the hub having an introverted portion extending up into the button, and provided with a jagged hole for the passage of the tack point, over and around which jagged hole the tack point is upset or clenched, in order to attach or set the button to an article, as I will proceed now to explain and finally claim.

In the accompanying drawings illustrating the invention, in the several figures of which like parts are similarly designated, Figure l is a plan view, and Fig. 2 is an edge view of a discous blank from which the button back is drawn. Figs. 3, 4l, 5 and 6 are longitudinal sections showing succeeding operations for drawing the blank of Figs. l and 2 into a hubbed back. Fig. 7 is a longitudinal section showing the hub drawn back into itself, and Fig. S is a longitudinal section of a second operation on the introverted hub. Fig. 9 is a view similar to Fig. 8 showing a third operation on the introverted hub and also showing this introverted portion provided with a jagged hole at its apex. Fig. 10 is a longitudinal section of one form of the completed button. Fig. 1l shows in longitudinal section the button of Fig. 10 applied to or set on a piece of fabric. Fig. 12 is a longitudinal section of a modified form of button.

In manufacturing the button, a discous blank l of suitable metal, is formed, and then subjected to a drawing action whereby the central portion is drawn out into a cupshape, as at 2, in Fig. 3, with a Haring rim 3. By a further operation the embryotic hub is further drawn out or elongated, as at 4, in Fig. 4l, and also reduced in diameter, and by a further drawing operation the hub is Specification of Letters Patent.

Patented Feb. 9, 1915.

Serial No. 768,529.

still further elongated, as at 5, in Fig. 5, and its diameter again decreased; and then by another operation the hub is still further elongated and narrowed, as shown at 6, in Fig. G, and the flaring rim is` cupped as shown at 7, in Fig. 6. In this condition the blank is subjected to a reverse drawing operation, by which thc bottom of the hub is drawn up into the hub, as vshown at 8, in Fig. 7 and at this same operation the flange 9 may be given its final form. Another operation, as shown in F ig. 8, extends the introverted hub portion farther back, as at 10; and then by a still further operation the hub has its bottom lines squared, as at 11, in Fig. 9, and the introverted portion 12 of the hub is given its final conical form, after which a hole is punched in the inner or apeXial end of the introverted portion of the hub, leaving the jagged points 13 standing up therefrom in the direction of the passage of the tack into the button. The pierced end of this introverted part of the hub eX- tends up into the button substantially into the plane of its back, and thereby the tack anchoring element is located at the point of greatest eiliciency. After the hubbed back is thus formed, the finishing cap 14 is closed down over the flange 9, with a filler or anvil 15 introduced between the flange and the cap, although if the metal of the cap is suf {iclently strong to withstand the point of the tack, the iller or anvil may be omitted.

A button constructed as above described, may be attached to a garment, as at 16, Fig. 11, by placing the button on one side of the garment, and driving the tack 17 into it from the other side, until its point meets the liller or anvil or equivalent, and is upset 0r clenched against such part and between it and the apex of the introverted hub and interlocked with the jagged points 13.

I have demonstrated the utility of the jagged points surrounding the tack opening in the hub, by comparing a button so formed with one in which a clean-cut hole is made for the point of the tack, and ascertaining that the button with the jagged hole has a greater holding strength than the one with the clean-cut hole, and requires very much greater pull to separate the tack from the button than the one with the clean-cut hole. If desired, the outside portion of the hub may be constricted as indicated at 18 in Fig.

l2, in order to adapt the button to certain classes of. Work Where a small Waist and large base are desirable.

I am AaWa-re that tack-fastened buttons have been provided with tack-anchoring features located Well up Within the back of :the button so as to get the holding` point of the tack more nearly centralized, to better resist the strains of use, but I am not aware that such tack-anchoring medium has been made integral With the hub of the button; on the contrary, it has, so far as l am aware, been commonly made as an independent part. Obviously, both the manufacture and the assembling of thebutton are simplified by making` this anchoring device integral.

What I claim is A tack fastened button, having a face .constructed to afford an anvil for upsetting the tack point, a back, and a hub, the said back and hub made as a single piece, Said hub having` an introverted bottom extending up into the hub in conical form and ending in close proximity to said face and provided with a jagged hole punched in its apex independently of the tack and prior to inserting the tack for settingthe button, the burs purposely formed by the aforesaid punching of said jagged hole extendinginwardly toward the face of the button So that in the subsequent setting of the button the tack point Willbe clenched between the face and said burs and interlocked with the said burs.

In testimony whereof I have hereunto set my hand this 16th day of May A. D. 1913.

GEORGE A. KING.

TWitnesses.:

PERCY Tvinnvun, E. A. HYDE- Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

y Washington, D. C. 

